- 4 top corners - 4 bottom corners - 4 side panels (3mm thick) of e.g. plywood - 1 bottom panel (3mm thick) of e.g. masonite The sides need to be 3 mm thick. It should be possible to scale the model if you need to make larger boxes with thicker material. The bottom panel should have the corners cut off to match the recess in the bottom corner pieces. The recess is 3 mm deep. The box in the photos is about 220x160x100 mm. Printed the pieces with 0.4 nozzle, 0.2 mm layer height, 0.8 wall/shell thickness, 50% infill using Ultimaker grey PLA on an Ultimaker 2 GO.